Theoretical Physics

15 May 2013
Time: 14:00 to 15:00
Location: EC Stoner Room 10.72

Jonathan Prance (Lancaster)

Spin lifetime measurements in a Si/SiGe double quantum dot



Silicon is a promising material for building solid-state spin qubits due to the high abundance of spin-zero nuclei in the crystal and a low spin-orbit coupling. In this talk I will discuss measurements of the two-electron singlet and triplet spin states in a Si/SiGe double quantum dot. These states form the basis for a logical qubit that combines fast manipulation and a spin readout mechanism. Readout of the states employs Pauli spin blockade to perform spin-to-charge conversion, combined with single-shot detection of the charge state using a nearby quantum-point-contact sensor.

Prance et al., Phys. Rev. Lett. 108, 046808 (2012)

 

 

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